I've just acquired a Yamaha BB450, 4-string, bolt-on neck held by four screws. There are cracks in the wood of the body from both the screws at the neck (open) end of the pocket. I've removed the neck to have a look, and it's definitely cracks in the wood, not just the lacquer.
The bloke I got it from bought it sight unseen from eBay a few years back - my guess is that it was dropped or stressed badly in transit, since I can't see any obvious sign of a harsh blow to the headstock.
How serious an issue is this? It's not something I've seen before. Any comments welcome.